Patent US4399220A successfully refreshed from Google Patents.
US4399220A
Expired / Lapsed
US
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Stabilizing lactobacilli
Assignee: Nestec SA
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Filing: 1979-02-28
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Granted: 1983-08-16
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Expires: 1999-02-28
Abstract
Abstract A process for producing a stable culture of a microorganism of the genus Lactobacillus containing at least one extrachromosomal genetic element which, on the one hand, stimulates its ability to produce lactic acid from lactose and which, on the other hand, controls its ability to metabolize N-acetyl-D-glucosamine, which comprises cultivating the microorganism in a nutrient medium of which the principal source of assimilable carbon is N-acetyl-D-glucosamine.
Inventors
- 👤 Martin B. Smiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:48
CPC Classifications
C; C12; C12P; C12P7/00; C12P7/40; C12P7/56; A; A23; A23C; A23C9/00; A23C9/12; A23C9/123; A23C9/1234; C12N; C12N1/00; C12N1/20; C12N15/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
66 words
A process for producing a stable culture of a microorganism of the genus Lactobacillus containing at least one extrachromosomal genetic element which, on the one hand, stimulates its ability to produce lactic acid from lactose and which, on the other hand controls its ability to metabolise N-acetyl-D-glucosamine, which comprises cultivating the microorganism in a nutrient medium of which the principal source of assimilable carbon is N-acetyl-D-glucosamine.
Claim 2
Dependent Claim
66 words
A process for producing a stable culture of a microorganism of the genus Lactobacillus containing at least one extrachromosomal genetic element which, on the one hand, stimulates its ability to produce lactic acid from lactose and which, on the other hand controls its ability to metabolise N-acetyl-D-glucosamine, which comprises cultivating the microorganism in a nutrient medium of which the principal source of assimilable carbon is N-acetyl-D-glucosamine.
Claim 3
Dependent Claim
35 words
A process as claimed in claim 1, wherein the microorganism is Lactobacillus helveticus of the subspecies, jugurti obtainable under No. S 36-2 from the Institute of Agronomic Microbiology of the University of Bologna in Italy.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-15 | 1987-02-14 | 1987-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-15 | 1991-02-14 | 1991-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-15 | 1995-02-14 | 1995-08-16 | $7700.00 | Window Closed / Lapsed |